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Finding the Third Proportional to 0.55 and 1.19

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Solution

The third proportional to 0.55 and 1.19 is: 2.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.55 : 1.19 = 1.19 : x
  2. Step 2: Convert to fraction form
    0.55/1.19 = 1.19/x
  3. Step 3: Cross multiply
    0.55x = 1.19 × 1.19
  4. Step 4: Simplify right side
    0.55x = 1.41
  5. Step 5: Solve for x
    x = 1.41/0.55
  6. Step 6: Final answer
    x = 2.58

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.